Monotremes (/ˈmɒnətriːmz/) are mammals of the order Monotremata. They are the only group of living mammals that lay eggs, rather than bearing live young...

Echidnas (/ɪˈkɪdnəz/), sometimes known as spiny anteaters, are quill-covered monotremes (egg-laying mammals) belonging to the family Tachyglossidae /tækiˈɡlɒsɪdiː/...

the five extant species of monotremes, mammals that lay eggs instead of giving birth to live young. Like other monotremes, the platypus has a sense of...

based on reproductive techniques: egg-laying mammals (yinotherians or monotremes - see also Australosphenida), and mammals which give live birth (therians)...

living monotremes, the platypus and the echidnas, as well as their closest fossil relatives, to the exclusion of more primitive fossil monotremes of uncertain...

Steropodon is a genus of prehistoric platypus-like monotreme, or egg-laying mammal. It contains a single species, Steropodon galmani, that lived about...

All modern mammals give birth to live young, except the five species of monotremes, which lay eggs. The most species-rich group is the viviparous placental...

family of early monotreme mammals known from the Cretaceous of Australia. Steropodon was initially placed in the crown group monotreme family Ornithorhynchidae...

exceptions are reported) and epipubic bones are present. Marsupials (and monotremes) also lack a gross communication (corpus callosum) between the right and...

sometimes specific to only one species (as observed in certain bird and monotreme species). One logical way to equalize gene expression amongst males and...

Elizabeth T.; Helgen, Kristofer M. (2024-05-26). "A diverse assemblage of monotremes (Monotremata) from the Cenomanian Lightning Ridge fauna of New South Wales...

Opalios (meaning "opal") is an extinct genus of monotreme mammal from the Late Cretaceous (Cenomanian) Griman Creek Formation of Australia. The genus...

subclasses based on reproductive techniques: egg laying mammals (the monotremes), and live birth mammals. The second subclass is divided into two infraclasses:...

Teinolophos is a prehistoric species of monotreme, or egg-laying mammal, from the Teinolophidae. It is known from four specimens, each consisting of a...

This list of fictional animals contains notable fictional animals of species that do not have a separate list among either the lists of fictional animals...

30, 2007, in the United Kingdom, May 1, 2007 in the United States on Monotreme, and April 23, 2007, in Japan on Zankyo. "Don't Go Down to Sorrow" was...

vertebrate animals. All amphibians, reptiles, birds, and a few mammals (monotremes, afrosoricids, and marsupial moles)[clarification needed] have this orifice...

(meaning "platypus" in the Gamilaraay language) is an extinct genus of monotreme mammal from the Late Cretaceous (Cenomanian) Griman Creek Formation of...

an extinct monotreme species from the Paleocene (Peligran) Salamanca Formation in Patagonia, Argentina. It is one of only two monotremes found outside...

an extinct family of small mammals that are among the earliest known monotremes and were endemic to what would become Australia. Two genera have been...

of the only distantly related erinaceomorph hedgehogs and Australian monotreme echidnas as well as tenrecid tenrecs. The word porcupine comes from the...

Purpose-inator", and Agent P must defeat him before he find it. 121 9 "Misperceived Monotreme" Jay Lender Kaz & Tom Minton Martin Olson May 13, 2011 (2011-05-13) 305b...

Flannery and Groves, 1998 – the largest subspecies, and the largest extant monotreme. It is found throughout the mountains of central New Guinea, from the...

Madagascar and Argentina, and Cretaceous of Australia and Argentina. Monotremes have also been considered a part of this group in its original definition...

although some, such as scorpions, do not. Reptile eggs, bird eggs, and monotreme eggs are laid out of water and are surrounded by a protective shell, either...

Patagorhynchus is a genus of prehistoric monotreme mammal from the Late Cretaceous (early Maastrichtian) Chorrillo Formation of Santa Cruz Province, Argentina...

(2004 - At a Loss/Monotreme) Scream of the Iron Iconoclast (2007 - At a Loss/Monotreme) Sacrifice and Bliss (2009 - At a Loss/Monotreme) 7th Direction (2012...

Stirtodon is an extinct genus of monotreme mammal from the Late Cretaceous (Cenomanian) Griman Creek Formation of Australia. The genus contains a single...

Sundrius is an extinct genus of probable monotreme mammal from the Late Cretaceous (Albian) Eumeralla Formation of Australia. The genus contains a single...

The monotremes (egg laying mammals) represent the order of extant mammals most distantly related to humans. The platypus (Ornithorhynchus anatinus) is...